3D-printed splint
A 3D-printed wrist splint for the first visit
The ONE Splint is a 3D-printed splint for the wrist, ready-made in three sizes. The clinic applies it at the first visit, for the first days while the swelling goes down, until the patient's custom 3D-printed cast arrives.
scan · print · heal

What it is
What is a 3D-printed splint?
A splint holds an injured limb in place. A 3D-printed splint is produced on a 3D printer rather than molded by hand at the clinic.
Some 3D-printed splints are designed for one patient from a scan. Others, like the ONE Splint, are off-the-shelf: printed in advance in standard sizes, so the clinic has one ready the moment a patient walks in.

The ONE Splint
The ONE Splint: a 3D-printed wrist splint, ready on the shelf
The ONE Splint is a temporary volar wrist splint, 3D printed and ready-made in three sizes. The clinic team picks the size that fits and applies it at the first visit.
It is meant for the first days after the injury, while the swelling goes down. During that visit the team also scans the limb, so the patient's custom cast can be designed and printed and then replace the splint.
The ONE Splint is registered with the Israel Ministry of Health Medical Devices Division (AMAR) and listed with the U.S. FDA. Gero3D operates a quality management system under ISO 13485:2016, certified by the Standards Institution of Israel (certificate 1123048).
The workflow
From splint to custom cast in 3 days
The splint covers the first days. The scan taken at the same visit starts the custom cast that replaces it.
- 01
Splint
At the first visit, the patient gets a ONE Splint in the right size.
- 02
Scan
The limb is scanned with the Gero app on an iPad in under two minutes, accurate to the millimeter.
- 03
Design and print
The software designs the custom cast automatically in about 40 seconds, instead of about 45 minutes by hand, and the production network prints it.
- 04
Cast
The cast arrives at the clinic within 3 days and replaces the temporary splint.

One visit
Splint and scan in the same visit
The team applies the splint, scans the limb and sends the order from one app. No cast room needed.
Comparison
ONE Splint vs. custom 3D-printed cast
| ONE Splint | Gero custom cast | |
|---|---|---|
| Role | Temporary, for the first days while the swelling goes down | Replaces the splint once it arrives |
| Fit | Ready-made in three sizes | Designed from a 3D scan of the patient's limb |
| When | Applied at the first visit | Arrives at the clinic within 3 days |
| Design | Standard design | Open lattice that lets air reach the skin; color and pattern chosen by the patient |
The custom cast weighs about 60 g, vs. 1.5 to 2 kg for a traditional plaster cast. It is water-resistant and comes off without a saw. Treatment decisions are always made by the treating doctor.

FAQs
Questions about 3D-printed splints
What is a 3D-printed splint?
A splint produced on a 3D printer instead of being molded by hand. The Gero3D ONE Splint is an off-the-shelf 3D-printed volar wrist splint that comes in three sizes.
How long is the ONE Splint worn?
It is a temporary splint for the first days, while the swelling goes down. The patient's custom 3D-printed cast arrives at the clinic within 3 days and replaces it. Treatment decisions are always made by the treating doctor.
Is the ONE Splint custom-made?
No. It is ready-made in three sizes, so the clinic can keep it on the shelf and apply it at the first visit. The custom part comes next: the cast that replaces it is designed from a scan of the patient's limb.
Is the ONE Splint registered?
Yes. The ONE Splint is registered with the Israel Ministry of Health Medical Devices Division (AMAR) and listed with the U.S. FDA. Gero3D operates an ISO 13485:2016 certified quality management system.
How does a 3D-printed wrist splint differ from a 3D-printed cast?
The ONE Splint is ready-made and temporary. The Gero cast is designed from a scan of the patient's limb, weighs about 60 g, is water-resistant, has an open lattice that lets air reach the skin, and comes off without a saw.
For clinics
Offer the ONE Splint and custom casts at your clinic
Free pilot for clinics: 10 casts at no cost, free training and equipment on us.
A patient? Read our patient page or see the FAQs.